subshell in A Sentence

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    Each command in a pipeline is executed in its own Subshell(see section Command Execution Environment).

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    2

    If a command is terminated by the control operator'&', the shell executes the command asynchronously in a Subshell.

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    3

    If a command is terminated by the control operator ampersand('&'), the shell shall execute the command asynchronously in a Subshell.

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    4

    In addition to the creation of a Subshell, there is a subtle difference between these two constructs due to historical reasons.

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    5

    This option applies to the shell environment and each Subshell environment separately see Command Execution Environment, and may cause Subshells to exit before executing all the commands in the Subshell.

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    6

    Placing a list of commands between parentheses causes a Subshell environment to be created(see Command Execution Environment), and each of the commands in list to be executed in that Subshell.

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